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Flowometry in optical coherence tomography for analyte level estimation

  • US 9,060,721 B2
  • Filed: 10/25/2013
  • Issued: 06/23/2015
  • Est. Priority Date: 03/04/2008
  • Status: Active Grant
First Claim
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1. A system for determining an indication of fluid flow in a tissue sample, the system comprising:

  • an optical coherency tomography apparatus configured to obtain intensity data measurements from a region in a tissue sample; and

    a processor configured to analyze the intensity data measurements from the optical coherency tomography apparatus to determine an indication of fluid flow in the region by at least;

    passing the intensity data measurements through a first band-pass filter having a first bandwidth centered at a base frequency to produce a first output;

    passing the intensity data measurements through a second band-pass filter having a second bandwidth that is wider than the first bandwidth and centered at the base frequency to produce a second output; and

    comparing the first and second outputs to determine the indication of fluid flow in the region.

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